// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Mega-Cart cartridge emulation Copyright MESS Team. Visit http://mamedev.org for licensing and usage restrictions. **********************************************************************/ #pragma once #ifndef __VIC20_MEGACART__ #define __VIC20_MEGACART__ #include "emu.h" #include "exp.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> vic20_megacart_device class vic20_megacart_device : public device_t, public device_vic20_expansion_card_interface, public device_nvram_interface { public: // construction/destruction vic20_megacart_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); // optional information overrides virtual machine_config_constructor device_mconfig_additions() const; protected: // device-level overrides virtual void device_start(); virtual void device_reset(); // device_nvram_interface overrides virtual void nvram_default() { } virtual void nvram_read(emu_file &file) { if (m_nvram != NULL) { file.read(m_nvram, m_nvram_size); } } virtual void nvram_write(emu_file &file) { if (m_nvram != NULL) { file.write(m_nvram, m_nvram_size); } } // device_vic20_expansion_card_interface overrides virtual UINT8 vic20_cd_r(address_space &space, offs_t offset, UINT8 data, int ram1, int ram2, int ram3, int blk1, int blk2, int blk3, int blk5, int io2, int io3); virtual void vic20_cd_w(address_space &space, offs_t offset, UINT8 data, int ram1, int ram2, int ram3, int blk1, int blk2, int blk3, int blk5, int io2, int io3); private: int m_nvram_en; }; // device type definition extern const device_type VIC20_MEGACART; #endif